Follow a dysfunctional team of MI5 agents—and their obnoxious boss, the notorious Jackson Lamb—as they navigate the espionage world's smoke and mirrors to defend England from sinister forces.

Slow Horses

A romantic relationship in Istanbul ends badly. Lamb hits the panic button when one of his Slow Horses fails to show up for work.

Strange Games

River has to steal something out of the Park to save a life. Lamb realizes a stranger game is afoot.

Hard Lessons

Marcus and Shirley face Lamb's wrath. River discovers revenge is a dish best served cold.

Negotiating with Tigers

Tearney makes a bold move. The Slow Horses assist the Tiger Team, unaware of their hidden agenda. Lamb and Ho take a road trip.

Uninvited Guests

Taverner and Tearney face off for control of MI5. River and Louisa find themselves caught in the crossfire.

Cleaning Up

The Slow Horses fight for their lives. Lamb shares some devastating truths with Catherine.